بحث بسيط
السجلات المعروضة 4791 -- 4800 من 4837
Novel miniaturized sensors for potentiometric batch and flow-injection analysis (FIA) of perchlorate in fireworks and propellants
(
Elsevier B.V.
, 2014 , Article)
Three planar miniaturized perchlorate membrane sensors (3×5mm2) are prepared using a flexible Kaptan substrate coated with nitron-perchlorate (NT-ClO4) [sensor 1], methylene blue-perchlorate (MB-ClO4) [sensor II] and ...
Influence of bimetallic nanoparticles composition and synthesis temperature on the electrocatalytic activity of NiMn-incorporated carbon nanofibers toward urea oxidation
(
Elsevier
, 2018 , Article)
High efficiency, cost effectivity and the availability of hydrogen are the advantages of
electrolysis as a strategy for urea-containing wastewater treatment. Composition,
morphology, and synthesis-temperature distinctly ...
Emerging clay-aryl-gold nanohybrids for efficient electrocatalytic proton reduction
(
Elsevier
, 2018 , Article)
There is an ever growing demand for renewable sources of energy to replace conventional fossil fuels. One of the alternatives is usage of hydrogen production by electrochemical hydrogen evolution reaction (HER). Toward ...
Improvement of ternary recycled polymer blend reinforced with date palm fibre
(
Elsevier, Ltd
, 2014 , Article)
This paper investigates the study and preparation of date palm fibre reinforced recycled polymer blend composites. This is the first paper which describes the recycled polymer ternary blends of (1) recycled low density ...
Redefining the climate niche of plant species: A novel approach for realistic predictions of species distribution under climate change
(
Elsevier
, 2019 , Article)
Climate change is increasingly affecting plant species distributions, in ways that need to be predicted. Here, in a novel prediction approach, we developed the relevant climate niche (RCN) of plants, based on thorough ...
Decline in oyster populations in traditional fishing grounds; is habitat damage by static fishing gear a contributory factor in ecosystem degradation?
(
Elsevier
, 2018 , Article)
The territorial waters of Qatar once supported dense assemblages of the pearl oyster Pinctada radiata. The oysters settled on a patchy network of limestone platforms (hairãt) and provided a suite of ecosystem services to ...
Biotransformation of carbon dioxide in bioelectrochemical systems: State of the art and future prospects
(
Elsevier
, 2017 , Article)
Carbon dioxide (CO2) utilization/recycling for the production of chemicals and gaseous/liquid energy-carriers is a way to moderate the rising CO2 in the atmosphere. One of the possible solutions for the CO2 sequestration ...
Baseline concentrations and distributions of Polycyclic Aromatic Hydrocarbons in surface sediments from the Qatar marine environment
(
Elsevier
, 2017 , Article)
Coastal sediments in marine waters of Qatar have the potential of being contaminated by Polycyclic Aromatic
Hydrocarbons (PAHs) due to extensive petroleum exploration and transportation activities within Qatar's ...
Baseline concentrations of mercury species within sediments from Qatar's coastal marine zone
(
Elsevier
, 2019 , Article)
Baseline concentration of total mercury (THg), organic extractable mercury and methylmercury (CH3Hg) concentrations in sediments from the northeastern, eastern and southeastern parts of the Arabian Gulf were assessed. ...
The State of Qatar and the United Arab Emirates
(
Elsevier
, 2019 , Article)
This chapter discusses the principles of road traffic signal control in the State of Qatar and the United Arab Emirate (UAE). In the first section, traffic control standards used in both countries are presented with a focus ...